Method and device for producing coke from noncaking coals

Abstract

The invention relates to coke production in general and specifically to methods and devices for the production of metallurgical coke from noncaking coals. The method comprises metering, crushing and mixing of coal, an adhesion agent, and an organic waste component to produce uniform feedstock and subsequent heating of the feedstock, wherein as the adhesion agent are used high boiling point products of plastic waste pyrolysis, which are added to the feedstock in an amount of 15% to 20% of the total feedstock volume and wherein the feedstock is heated in the temperature range 250° C. to 1100° C. The device comprises a fire-resistant coking chamber; heating ducts; burners; means for charging the material to be coked; a coke discharging means, wherein the device comprises a heating tank provided with a charging hole for charging plastic waste, organic waste, and catalysts; and with a flight conveyor for removing undissolved residues from said tank.

1 . A method for producing coke from noncaking coals, the method comprising metering, crushing and mixing of coal, an adhesion agent, and an organic waste component to produce a uniform feedstock and subsequent heating of the feedstock, characterized in that, as the adhesion agent, the high boiling point products of plastic waste pyrolysis are used, which are added to the feedstock in an amount of 15% to 20% of the total feedstock volume and wherein the feedstock is heated in the temperature range 250° C. to 1100° C. 
   
   
       2 . The method as claimed in  claim 1 , characterized in that, as the high boiling point products of plastic waste pyrolysis, the medium-molecular-weight tar-like products are used, which are produced in the temperature range of 250° C. to 380° C. under atmospheric pressure in the presence of catalysts. 
   
   
       3 . The method as claimed in  claim 1 , characterized in that, as the organic waste component, worn-out automobile tire waste is used. 
   
   
       4 . A device for producing coke from noncaking coals, the device comprising a fire-resistant coking chamber; heating ducts; burners; means for charging the material to be coked; a coke discharging means, characterized in that the device comprises a heating tank provided with a charging hole for charging plastic waste, organic waste, and catalysts; and with a flight conveyor for removing undissolved residues from said tank; the fire-resistant coking chamber being made in the form of a vertical tower, in the walls of which there are arranged peripheral descending air ducts and internal, ascending to a flue gas exhauster, heating ducts; wherein in the bottom of the tower, the air ducts and heating ducts are connected to fire-chambers with burners, a gas collector being connected to the top of the chamber and the bottom of the tower being made tapered and provided with an inside gate, through which the chamber is connected to a quenching receiver. 
   
   
       5 . The device as claimed in  claim 4 , characterized in that the means for charging the material to be coked comprises a metering hopper and a screw-type feeder-gate. 
   
   
       6 . The device as claimed in  claim 4 , characterized in that the inside gate is provided with a pressure sensor. 
   
   
       7 . The device as claimed in  claim 4 , characterized in that the coke discharging means comprises an outside gate.